Linux Kernel up to 6.11.3 virtio_pmem virtio_pmem_flush unusual condition

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.10.226/5.15.167/6.1.112/6.6.56/6.11.3. The affected element is the function virtio_pmem_flush of the component virtio_pmem. The manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2024-50184. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.226/5.15.167/6.1.112/6.6.56/6.11.3 and classified as problematic. This issue affects the function virtio_pmem_flush of the component virtio_pmem. Using CWE to declare the problem leads to CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: virtio_pmem: Check device status before requesting flush If a pmem device is in a bad status, the driver side could wait for host ack forever in virtio_pmem_flush(), causing the system to hang. So add a status check in the beginning of virtio_pmem_flush() to return early if the device is not activated.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2024-50184 since 10/21/2024. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/13/2024).

The vulnerability scanner Nessus provides a plugin with the ID 212748 (CBL Mariner 2.0 Security Update: kernel (CVE-2024-50184)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.227, 5.15.168, 6.1.113, 6.6.57 or 6.11.4 eliminates this vulnerability. Applying the patch 4ce662fe4be6/9a2bc9b6f929/6a5ca0ab94e1/b01793cc63dd/ce7a3a62cc53/e25fbcd97cf5 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (212748). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.226
• 5.15.167
• 6.1.112
• 6.6.0
• 6.6.1
• 6.6.2
• 6.6.3
• 6.6.4
• 6.6.5
• 6.6.6
• 6.6.7
• 6.6.8
• 6.6.9
• 6.6.10
• 6.6.11
• 6.6.12
• 6.6.13
• 6.6.14
• 6.6.15
• 6.6.16
• 6.6.17
• 6.6.18
• 6.6.19
• 6.6.20
• 6.6.21
• 6.6.22
• 6.6.23
• 6.6.24
• 6.6.25
• 6.6.26
• 6.6.27
• 6.6.28
• 6.6.29
• 6.6.30
• 6.6.31
• 6.6.32
• 6.6.33
• 6.6.34
• 6.6.35
• 6.6.36
• 6.6.37
• 6.6.38
• 6.6.39
• 6.6.40
• 6.6.41
• 6.6.42
• 6.6.43
• 6.6.44
• 6.6.45
• 6.6.46
• 6.6.47
• 6.6.48
• 6.6.49
• 6.6.50
• 6.6.51
• 6.6.52
• 6.6.53
• 6.6.54
• 6.6.55
• 6.6.56
• 6.11.0
• 6.11.1
• 6.11.2
• 6.11.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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